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3 years ago

How to solve 8x^3+1=0

1 answer:

6 0

8x^3 + 1 = 0
8x^3 = -1 <----------- Step 1: Subtract 1 from both sides.
x^3 = -1/8 <----------- Step 2: Divide both sides by 8.
x = ∛(-1/8) <----------- Step 3: Cube root both sides
x = -0.5 <----------- This is the final answer when you plug the last step into the calculator

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A won a race at the local fair by running 10.5 miles in exactly 2 hours. At this constant rate, how long does it take the same

Luba_88 [7]

Answer:

The dog will run the 21-mile race in 4.04 hours

Step-by-step explanation:

The first thing we need to do is find out how far he ran the race at the local fair in 1 hour.

To do this, we can set up a simple relationship:

If he ran 10.5 miles in 2 hours,

He will run x miles in 1 hour

Cross multiplying, we have

x = (10.5 X 1)/2 = 5.25 miles in 1 hour.

We can now comfortably say that he runs at the rate of 5.2miles/hr

He now goes to the state fair race, which is 21 miles long.

if he runs at the rate of 5.2 miles in 1 hour,

He will run 21 miles in y hours

y = 21 / 5.2 = 4.04 hours

The dog will run the 21-mile race in 4.04 hours

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3 years ago

Answer the question below.

Agata [3.3K]

Answer:

-16 / 2

Step-by-step explanation:

You have 16 negative tiles and you are dividing it into 2.

4 0

3 years ago

Read 2 more answers

Sarah is saving for a vacation. She kept track of how much she saved each month over the last six months in the following table.

ohaa [14]

You will add them all together, then multiply the sum by 6.
713/6 = 118.833333
this rounded to the nearest hundredth
$118.83 per month

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3 years ago

What can you tell about the mean of each

Lilit [14]

Answer: The difference between the mean cost to treat dogs at A New Leash on Life

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Clinic is about 10 times the MAD This is a large difference.

Step-by-step explanation:

I GOT THIS RIGHT! THIS IS THE ANSWER

3 0

3 years ago

What is the graph of x=-5

asambeis [7]

x = a - is a vertical line, where a is any real number

x = -5 - the vertical line passes through any points in the form (-5, y). Where y is any real number.

Look at the picture.

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3 years ago